Burner



Ap 2s, 1925.

L,RQMENDELsoN BURNER Fi1ed Apri; 21; 1924 gwwnkoz Patented Apr. 28, 1925.

UNITED ,STATES 1,535,431 PATENT QFFICE.

Louis n. innNnnLsoN, or CLEVELAND, onto.

BURNR.

Application ledAprl 21, 1924. Serial No. 707,916.

To all 107mm t may cof/tecra.

Be it known that I, Louis R. MnNnnLsoN, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Burners, ot which the following is a specification.

rThis invention relates to improvements in gas burners.

rElie object of the present invention is to provide an improved burner which may be easily and inexpensively formed by a simple casting operation; in which there is no central flat top surface of such extent that dirt and the like might collect thereon and close adjacent jet orifices g? in which the mixture of gas and air is distributed substantially uniformly throughout the burner chambers, from which it passesi through properly arranged jet oriiices to produce a substantially uniform flame over the top of the burner; and which burner is so formed that saliicient air is directed to the space above the central portion of the burner to ensure perfect combustion and maximum heating effects.

Further objects of the invention are in part obvious and in part will appear more in detail hereinafter.

In the drawing, Fig. 1 is a plan view et my improved burner arranged Within the casing of a water heater; Fig. 2 is a bottom `plan view of the burner with the central depending tubular portion broken away to more clearly illustr'ate the chamber passag and Fig. is a vertical sectional view on the line 3 3, Fig. 1.

Referring to the drawing, the burner therein illustrated comprises in general outline a substantially fiat circular top, a relatively narrow annular side wall, and a downwardly and inwardly inclined bottom terminating in a centrally disposed depend ing tubular connecting portion 10. More specifically, the burner comprises an enlarged central distributing portion 11 above the tubular portion 10, a marginal or circumferential portion 12 and radially extending spaced connecting portions 13, three such connecting portions being here shown, the burner being formed in one or two pieces by a simple casting operation. "While the top wall of the burner may be provided with any suitable number and arrangement of jet oriiices or gas tips, the marginal portion 12 is here provided with two concentric series oli-orifices 1a and the radial connecting portions 13 areeach provided with two radially extending` rows of orihces.` The gas flame is, therefore, distributed'over substantially the entire burner top. i

As clearly indicatedin the drawi`ngs,the top wall of the central distributing portion 11 is formed with a plurality of' elongated, substantially V-shaped depressions 15 arranged between adjacent radial connecting portio-ns 13 and extending downwardly and outwardly from substantially the center of the top wallet the central distributing portion. Vllhile three such depressions are here shown, it will be understod that if the num ber of radial connecting portions' 13 is varied, such as by being increased to four, the number of depressions 15 will be cor respondingly varied.

These inclined depressions 15 serve three purposes. First, they avoid the formation of the upper wall of the central distributing portion asa liattenedsurface of suilicient extent as to collect dirt and the like thereon which might close adjacent jetorilces. Second, the air travellingY upwardly through the three circumterentially spaced, elongated openings 16 between the radial connecting portions 13 passes along these depressions tol the space above the centra-l portion of the` burner so that sufficient air is provided for a proper mixture of gas and air, thereby en# suring maximum heating effects. In order to ensure the travel of' the air upwardly along these depressions, the marginal por tion 12 is provided with three projections 1S extending inwardly into the air openings 16 opposite the'depressions 15. These projections have inclined bottom walls 19 which direct or deflect the air toward the depressions 15. Preferably, these projections are each pro-vided in their Lipper wall with one or more jet orifices 14. The third purpose of the depressions 15 is to direct the mixture of' gas and air entering the chamber 20 of the central distributing portion 11 into the passages 21 of the radial connecting portions 18 and thence into the annular passage 22 of the marginal or circumferential portion 12. As clearly indicated in Fig. 2, the gas and air mixture entering the central chamber 20 will be deflected by the inner angular surfaces 23 of the depression wall portions into the radial passages 21. The mixture of gas and air is therefore substantially uniformly distributed in the burner chambers and a substantially uni form flame produced over the upper burner surface.

In the present embodiment, the burner is illustrated as arranged within the cylindrical casing 30 of a water heater. For this purpose, the marginal portion 12 of the burner is provided with a plurality of integrally formed, outwardly extending supporting lugs, three being here shown. The two diametrically opposed burner lugs 3l are adapted to rest upon the inwardly extending lugs of the heater casing, while the third burner lug 33 between lugs 3l is adapted to project through a suitable aperture in the heater casing, and receive outside of said casing a cotter pin 34e or other suitable securing means. rI "he tubular connecting portion l0 of the burner is mounted upon the upper tubular end 35 of the usual primary gas and air mixing casing. Suitably arranged within the casing and above the burner is a coil 36 through which circulates the water to be heated by the burner.

that I claim is:

l. A gas burner, comprising a central portion, a marginal portion, and radially extending connecting portions, the upper wall of said central portion being provided with elongated depressions extending downwardly and outwardly from substantially the center of the upper surface of said central portion.

f2. A gas burner, comprising a central portion, a marginal portion, and radially extending, spaced connecting portions, the upper wall of said central portion being provided with elongated depressions arranged between adjacent radial connecting portions and extending downwardly and outwardly from substantially the center oi the upper wall of said central portion.

3. A gas burner formed in one piece and comprising a central portion, a marginal portion, and radially extending', spaced connecting portions, the upper wall oi' said central portion being provided with elongated depressions arranged between adjacent radial connecting portions and extending downwardly and outwardly from substantially the center of the upper wall ot said central portion.

t. A gas burner, comprising a central portion, a marginal portion, and radially extending, spaced connecting portions, the upper wall of said central portion being provided with substantially V-shaped depressions arranged between adjacent radial connecting portions and extending downwardly and outwardly from substantialljv the center of the upper wall of said central portion.

5. A gas burner, comprising a central portion, a marginal portion, and radially extending spaced connecting portions, the upper wall of said central portion being provided with elongated depressions arranged between adjacent radial connecting portions and extending downwardly and outwardly from substantially the center of the upper wall of said central portion, said marginal portion being provided with inwardly extenfl ing projections opposite said depressions for guiding the air passing through the spaces between the radial connecting portion upwardly along said depressions.

G. A gas burner, comprising a central chamber for receiving a mixture of gas and air, an annular marginal chamber, and radially extending chambers connecting the central and marginal chambers, and means for directing the mixture of gas and air delivered into said central chamber into said radial chambers and thence into said marginal chamber.

7. A gas burner, comprising a central chamber for receiving a mixture of gas and air, an annular marginal chamber, and radially extending chambers connecting the central and marginal chambers, the wall ot said central receiving chamber being depressed into said chamber at one point Ait least for directing the mixture of gas and air into one or more of said radial chambers.

In testimony whereof I hereby aitx my signature.

LOUIS R. MENDELSON. 

